Idenix Pharmaceuticals Reports Data From Three Hepatitis C Development Programs at the 44th Annual Meeting of the European Association for the Study of...(vity with tight binding to the HCV prote...)

Date:4/23/2009

vity, with tight binding to the HCV protease and no activity observed against eight human cellular proteases. IDX316 retained activity against common mutations in NS3 and exhibited enhanced activity when combined with standard-of-care agents or other Idenix compounds in development (IDX184 and IDX375). Favorable PK profiles in rodent and non-human primate species suggest the potential for once- or twice-daily dosing in humans (half-life of 4.0-5.2 h; bioavailability of ~20%).

IDX375 Non-Nucleoside Polymerase Inhibitor

The preclinical pharmacokinetic and toxicology profile of IDX375 was also presented at EASL. Data support once- or twice-daily dosing in HCV-infected patients based on favorable bioavailability and plasma drug exposure levels in animal studies. IDX375 showed limited metabolism and no cytotoxicity when incubated with mouse, rat, monkey or human hepatocytes. IDX375 demonstrated no adverse effects in monkeys given daily oral doses of 10 or 100 mg/kg for 7 days.

About Idenix

Idenix Pharmaceuticals, Inc., headquartered in Cambridge, Massachusetts, is a biopharmaceutical company engaged in the discovery and development of drugs for the treatment of human viral diseases. Idenix's current focus is on the treatment of infections caused by hepatitis C virus. For further information about Idenix, please refer to www.idenix.com.

Forward-looking Statements

This press release contains "forward-looking statements" within the meaning of The Private Securities Litigation Reform Act of 1995. Such forward-looking statements can be identified by the use of forward-looking terminology such as "may," "plans," "anticipates," "will," or similar expressions, or by expres
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SOURCE Idenix Pharmaceuticals, Inc. Copyright©2009 PR Newswire. All rights reserved

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